Thrust bearing



B. M. W. HANSON THRUST BEARING Filed Nov. 20. 1920 filllllmlllll awvwwl oz Patented Oct. 13, 1925. i. i v p p UNITED ST TE PME T 1FF I nnnerm. w. HANSON, or HARTFORD, oonivnc'rrour nines A. nansonnnncnnn. Enon E; WHITN Y ADMINISTRATOR'S one-AID BENGTE M. W..I-I'A1\TSO1\T, nnenn'snzn.

THnUsT BEARING.

Application filed November 2o, 1920.1 Serial no. 425 356.

To all whom it may concern: ing member or plate lO is a collar ll which Be it known that I, BENGT M. W. HAN- forms anabutment on the spindle and-'unay SON, a citizen of the United States, and a be made integral therewith or preferably resident of Hartford, county of Hartford, separate therefrom, as shown, but-keyed 5 State of Connecticut, have invented certain thereto. Contacting with the outer face of new and useful Improvements in a Thrust the bearing member or plate is a-second Bearing, of which the following is a speci collar 12 also keyed to the spindle. Bearing fication. v 1 against the outside of'the collar 12 is a This invention relates to an improved spring washer 15 which encircles the 10 thrust bearing for rotating partsof maspindle. Thespindle is movable longituchinery and has as its objects to provide'an dinally through its main bearings and by improved structure of this sort by which 'means of the adjusting nut 16 on the end a rotating part isheld against longitudinal of the spindle, the collars 11, 12, are movement or vibration, binding action is brought up into proper contact with the obviated and expansion or contraction of bearing member of plate 10 and the spring the parts comprising the thrust bearing and 1 5 put under sufficient ,tension to hold wear of those parts are automatically taken them in position. care of. The present invention has peculiar In the embodiment shown in Fig. 2, there 5 application in connection with rotating is fixe'dtothe spindle a a collar 25 which parts of machines where precision is reforms an abutment contacting againstthe quired,,such as the spindle of a grinding outerface ofthebearingmemberlO. Havwheel employed, for instance, in the final ing-a bearinginthe outer end of the spindle grinding or finishing operation of athread. a is a plunger 26 and between this plunger In work of this kind, it is imperative that and a pin 27 is a spring 28. If desired,

the grinding wheel run smoothly and withthe springmay be housed within the plunout vibration, for slight endwise movement ger, as shown, and the plunger maybe supof the wheel will introduce errors which ported by the pin 27 which is carried by render the work unsuitable for use. a cap 29f-fastenedflto the plate 10 or other- In the accompanying drawing: wise secured in -position. I w

30 Fig. 1 is a View showing, in section, one It will be understood that in the emembodiment of the present invention apbodiments shown and described, thestrength plied to the spindle ofa grinding wheel, and of the spring 15 or 28 is slightly greater Fig. 2 is a similar view of another emthan any demand which will be put upon bodiment. the tool, in this instance the grinding wheel,

35 Referring to the drawing in detail, a is and consequently as the tool is doing its the spindle rotatably supported by a pair work the spindle will always be held up of suitable bearings b and carrying at one in place by these springs with the abutments end, which projects beyond the bearings Z), 11 or. 25, as the case may be, against the a grinding wheel 0 the edge of which is fixed bearing member 10. Thus, endwise shaped in cross section to correspond to that movement of the spindle is practically elimof the thread tobe ground. The spindle inated so that the grinding wheel will run may be provided between the bearings 6 true and cut the work along the correct line with a pulley d for rotating it. without deviation. Expansion or contrac- The thrust bearing to which the present tion of the member 10 or other parts of 45 invention relates is applied to the opposite the thrust bearing and wear between these end of the spindle, which end may be of parts are taken care of by the springs so reduced diameter as at a. This bearing, as to eliminate any loose play or endwise 1 in both embodiments shown in the drawmovement of the spindle. By reducing the ings, includes a fixed thrust member or plate end of the spindle, it is possible to reduce 10 which may be secured to one of the bearthe size of the contacting faces of the thrust ing housings. bearing and so reduce the friction between In the illustrative disclosure of Fig. 1, these parts; and it is also to be noticed that contacting with the inner face of this bearthe reduced end of the bearing is smaller have an oil-duct 17 leading down to a longitudinal groove 18 which communicates with vertical oil grooves 19 in the bearing faces of the member 10. With this arrangement, the oil will be drawn up into the oil grooves 19 by centrifugal action and thus the bearing faces will always be maintained -.in a properly lubricated condition.

I Itis, of course, obvious that my invention is susceptible of various modifications and changes which are within the spirit of the invention without departing from the scope of the following claims, it being understood that the present disclosure of my invention is by way of illustration only and it is not to be taken as restrictive of my conception.

I claim as my invention I 1. In a metal working machine, a spindle rotatably supported in suitable bearings but movable longitudinally therethrough, a grinding wheel fixed to said spindle, a fixed thrust bearing member through which said spindle extends, an abutment on said spindle bearing against one face of said member, a-collar on said spindle bearing against the other face of said member, and a spring engaged between said collar and spindle.

2. Ina metal working machine, a spindle rotatably supported in suitable bearings but I movable longitudinally therethrough, a

grinding wheel fixed to said spindle, a fixed thrust bearing member through which said.

spindle extends, an abutment on said spindle. bearing against one side of said member, a collar keyed to said spindle at the other side of said member, a spring engagdesired, the member: 10, particularly ing said member, and a nut adjustable on said spindle for varying the tension of said spring.

3. In a metal working machine, a longitudinally movable spindle rotatably supported in suitable bearings with its opposite ends projecting beyond said bearings, a grinding wheel secured upon one end of said spindle, afixed bearing member through which the other end of said spindle projects, an abutment on said spindle bearing against the inner face of said member, a collar keyed on said spindle to the other side of said member, and a spring engagedbetween said collar and spindle for urging said abutment and collar against said member. I

4. In a metal working machine, a spindle rotatably supported in suitable bearings, an apertured bearing member having oil grooves in its bearing faces leading upwardly from said aperture and an oil-duct for feeding oil to said grooves, an abutment on said spindle bearing against one face of said member, a collar keyed on said spindle and bearing against the other face of said member, and a spring between said collar and spindle and urging the same in opposite di rections.

5. In a metal working machine, a spindle rotatably supported in suitable bearings and having a shoulder, a fixed thrust bearing member through which said spindle extends, a collar keyed to said spindle between said shoulder. and one face of said member, a second collar also keyed to said spindle and engaging against the other face of said member, a nut threaded on the end of said spindle, and a spring washer between said nut and second collar.

Bauer M. w. HANSON. 

